Project Title:

Low density-activated fibrous carbon-carbon composite cryogen containment

09.19-4024
Project Title:Low density-activated fibrous carbon-carbon composite cryogen containment
system
Company:Nuclear Filter Technology Inc.
Golden, CO 80401
Principal Investigator:Gilbert W. Brassell

Abstract:

A low density, porous (70 to 90%)
carbon bonded carbon fiber composite material primarily developed for use in filtration
systems is ideally suited for use in containment of liquid cryogen used for cooling
detectors, sensors, and thermal shields.  The use of this composite material for
storage of liquid cryogen should result in entended cryogen life and improved handling
and storage characteristics.  The objectives of this study are to improve on the
current fabrication processes and develop a carbon composite exhibiting high porosity
(greater then 80%) high surface area, high compressive strength and low dusting characteristics.
 In this proposed study, starting materials and processing parameters will be varied
in a systematic manner to produce samples which can subsequently be evaluated with
regards to porosity, pore size distribution, surface area, compressive strength and
dusting characteristics.  Process variables to be investigated include:  fiber precursor,
fiber length, fiber to resin ratio fiber conentration, and carbonization profile
(time, temperature, atmosphere).